Carbureter.



UNITED sTATEsirATENT OFFICE.

JOHN 8. GOLDBERG, I CHICAGO, ILLINOIS, ASSIGNOB TO :.TROMBEBG MOTORDEVICES GODANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

casaunnrnn.

Specification c! Letters Intent.

Patented Feb. 10, 1914.

To all whom it may concern:

Be it known that I, Jomv S. Gotonsao,

a citizen of the United States, residing atmatic adjustment which enableregulation of the gas' How with a minimum number of operations, therebeing only one lever whose operation serves to control the mixture andfeeding of gas to the engine.

In the` accompanying drawings which illustrate my invention, Figure 1shows a top view of the carburetor, various parts having been removed inorder to show the valve seat and the` seat for the float; Fig. 2 is asectional view taken on line 2-2 of Fig. 1, the'parts removed in Fig. 1being shown in osition; Fig/8 is a sectional view taken on ine 3-3 ofFig. 1; Fig. 4 is a sectional view taken on line 4-4 of Fig. 1, and Fig.5 is a top view, showing the valve in position on the valve seat.

The frame 1 supports at one end the spindle valve seat 2 and at theother end the cylindrical frame 3. Extending upwardly from the valveseat 2 is the hollow cylindrcal standard 4 through which extends thevalverod 5, having. at its lower end a re- 40 duced extension 6terminating in the valve point 7 for controlling the inlet 8. Thron hthe walls of the standard 4 just above t 1e hase 2 'are thediametrically opposite openings 9 and 10 in which are pivoted on pi"-ots 11 and 12 the levers 13 and 14. The inner ends or points 15 and 160ithese levers respectively engage the shoulder 17 of the valve rod whilethe outer arms 17' and 18 of the levers engage the float cylinder 19which float is hollow and which has a central'opening 20 through whichpasses the standard 4. Extending upwardly from the frame 1 andsurrounding thcvalve seat part 2 is the angular projection 21 withinwhich 55 is disposed the lower end of cylinder 2,2

which is preferably of glass or other transl parent material. A cap 23ts the upper end of t-he cylinder 22 and has a central threaded opening24 for engaging the threads 25 at the upper end of the standard 4 Aguide nut 2G is also adapted to engage the threads at the end of thestandard and has the guide 27 through which passes the upper end 28 ofthe valve rod. lVashers or gaskets 29 and 30 being placed in position,asshown, and the cap 23 and lock nut 26'screwed into place, a sealedchamber is provided. By means of suitable fittings 31,-

the valve chamber 32 may be connected through pipe 33 with a source ofoil supply, such as gasolene. When the lient reservoir is empty, theWeight of the float will he suficient to turn the levers 13 and 14 toraise their inner ends and consequently to raise the valve rod to holdthe spindle valve pin 7 up to 'oplen the inlet 8 tc allow entrance of,A

oil Into t e reservoir. However, as the oil rises in the reservoir, theweight of the float will be lgradually lifted :from the levers, z ,iwhen t e oil reaches a certain fined the weight of the valve rod will.over w.. the weight of the float and will drop to close the inlet 8.With this arrangement the oil in the reservoir is automaticallymaintained at a constant fixed level. By means of a cock 34 suitablyconnected with the fittings 31, the reservoir may at any time bedrained.

Within the cylindricalframe 3 is the cylindrical valve seat frame 35.The interior 36 of this valve frame is connected with the air inlet 37,while the channel or outlet 38 through the body of the valve seat frameconnects through passageway 39 with the reservoir, as best shown inFigs. l, 2 and 3, the passageway 39 leading through the supporting frameL The space surrounding the valve scat frame constitutes a carburetingchamber 40 which may be connected through outlet 41 with the engine inan;v suitable manner. The valve block 42 is mounted on top of the valveseat, as shown in Figs. 2, 3 and 5, and a guide stem 43 extendsdownwardly r'om this valve into the guide pedestal 44. Extendingupwardly in the chamber 36 through said valve block is the horizontalpassageway 45 for receiving crank pin 46, extending from the crankcylindcr 47, journaled in the bearing frame 48 extending laterally fromthe frame 3, as

Y crank pin 46 will cause vertical rcciprocaVv Y tion of the valveblock. In vthe top of the ,valve block is a cylindrical pocket 50 for'receiving a worin Wheel 51 whose support ing 'stem 52 at one end isjournaled in the pocket 53 and Whose upper end extends through anopening or 'gnidevvay 54 through cap 55 and nut extension 56, this cap'having a threaded flange 57 for engaging the threaded upper end 'of theframe 3, the nut part 56 being integral with the cap part. The WormWheel is confined in the pocket 50 by the plate 58 held to the valveblock by the screw 59, the valve stem 52 passing through the opening 60in this plate. Extending through the valve block and through theedgeofthe pocket 50 is the Channel 6l which registers with the outiet 38which communicates through the channel 39 with the reservoir.Alf'lxtending through this channel 61 and into outlet 38.

is a valve rod 62. At the upper end-of this valve rod is a groove 63Whose rear face has the teeth 64 engaged by the Worm Wheel so thatrotation of the Worm Wheel 'will cause vertical movement of the valverod. Thelower end 65 of the valve rod is out away at a gradual bevel, asbest shown in Fig. 3, and'thus as the valve rod is raised or lowered,the area of the end of the outlet 38 is increased or decreasedcorrespondingly. The vertical movement of the valve rod is limited bythe upper and lovver Walls of the groove 63.

The level of the oil in the outlet passage way 38 Wili be the same asthat in the reserH voir, and when the engine is to be started, the armor lever [i9 is turned a suitable distance, thereby raising the valveblock to open communication through `the chamber 86 and between theinist 37 and the carburetii g hamber 4G and aise te raise the valve rod62 to establish.ecmmunication between the outlet channel 38 and thecarbureting chamber. When the engine is started, the

suction draws in air through `the pipe 37- `which air rushes throughbetween the valve block and top of the valve seat past the end of: theoutlet 38, thus sucking up the gasolene from the passageway 3S whichgasolene is thoroughly vaporized and mixed with the air inthecarbureting chainberbefore passing to the engine. The desiredproportion between air and gasolene is as adjusted by turning the stem52 which may be done by means of a wrench engaging the polygonal end 66of the shaft 52 supporting the Worm wheel, and this proportion ofgasoiene and air will be maintained during any adjusting movement of thearm do. This proportion of adjustment could, ot course', be accomplishedin the first place by giving the Losoaes proper taper to the end ttfnoiithe valve rod 62, but this would require. enact and expensiveworkmanship and besides might very easily lose, its adjustment,v By theuseof the worin Wheel adjusting arrangemenhjust the ordinary care needbe taken in lieveling theend 65, the lino adjustment. being accom--plishcd by the i'vorm W iecl arrangement.

lnstead ot employing set screivs t'ohvold the crank shaft et? in itsbearings, lcause the flange 57 to perform this function, this `flangeextending inlo an annular groove 67 surrounding the inner end of thecrank shaft 4T. v

lt will be not-iced that the construction and arrangement of my deviceare very simple, ,iti requiring very little Work to get at any of theparts, both for Iinspection or repairs. For example, if the spindlevalve in the reservoir is ydesired to be inspect-ed, itis .necessaryonly to unscreW the capnut drawn. :lf itis desired to examine the doat,thecap nut 26 and cap 30 are removed whereupon the float can be liftedfrom the standard s; also by removing thecap 55 from ,the frame 3, thecrank mechanism may. be immediately` withdrawn and'V the valve blockwith all its attachments lifted from the seat, and thissimplearrangement is: a very desirablefeature. The" reservoir cylin der22 being of glass enablesready determination of the levelof oil or theposition of the float in the reservoir. be limited, however, Vto theexact arrangement and construction shown and described, as changes maybereadily made. without departing from the scope of my invention.

I claim as .new and desireto secure by Letters Patent: .i Y j j l. lna-carbureter, the combinationwith said chamber and an inlet. passagewayfor fuel terminating in chamber, afvalve stem engaging in saidpassageway, amem ber in which said valve stem is mounted, an adjustingrod extending from said member. and rotatably vpivoted therein, andmeans vadapted upon the turning of said adjusting rod to causevlongitudinal non-rotative movelment of the valve stem and therebyadjust- `ment of the inlet passageway; y n v 2. In a carbureten'thecombination with a carbureting .ehamber,l an inlet` for air into said.chamber and au inlet passagewayfcr fuel terminating in said chamber, avalve ber in which 4saidvalve stem is mounted, an adjusting rodextending from said mem ,ber and rotatably pivoted therein, a worm wheelonsaid adjusting rod, and threads on said valve stem engaging with saidlWorm Wheel whereby rotation of the adjusting rod will cause adjustmentof the valve stem VWith reference to the inlet passageway.

2G whereupon the valverodmay `be with I, do not Wish to a carburetingchamber,` an inlet for air intol stem engaging in said passagevmy,y amein f 3. In n earbureter, the combination of a easing forming :tcm'bureting chamber, an inlet'- tosaid chamber for air, un inlet passngewny to said chamber for fuel, n valve stem engaging in seidpassageway, un adjusting rod in snhl Casing and parallel to the vulvestem, worm thrends'carred by said rod, and teeth or threads on the valveStem engagt g said worm threads, whereby rotakomoit the: adjustment rodwill cause moven-1e1f1t @if the valve stem in a direction parallel tothe@ justng rod.

4l.. 1in, a enrbureter, the combination of a valve stem for coperatingwith said Worm threads.

In witness whereof, I hereunto subscribe 20 my name this 29th day 0fOct. A. D., 1906.

' JOHN s. GOLDBERG.

Vitnesses: LEONARD W. NOVANDER,

`CHARLES J. SOHMIDT.

